FoxQueue is an addon to help you manage your battleground queues in party and raid. It offers a quick way to check where your party is, who is queued, and also allows you to queue up at the same time for Alterac Valley.

This addon works for *both* factions, and the sourcecode is well commented (read: not obfuscated). Actually wrote this in less 24 hours after I found Preform AV Enabler (which is horde only).

FoxQueue also features a countdown in party or raid (enable with "/fq countdown 1") and a nice "Join as Group" button for the party leader.

Use "/fq help" to display the help and "/fq status" followed by an optional player name to see what queues they are in, assuming they have the the addon installed. "/fq ping" will tell you who has the addon installed, and the roundtime (in ms) to them.